Milk-cooling device



May 20, 1930. w. Cl KELSO 1,759,578

MILK COOLING DEVICE Filed July 2, 1928 grt/marito@` WILL-mm C. Kr-:LSO

Patented May 20, 1930 UNITEDI STAT-Es PATENT 4oI-Flclsz WILLIAM C.KELSO, F RUSHVILLE, IN'DIANA, ASSIGNOR, BY DIRECT AND MESNE AS-SIGNMENTS, TO 'WILLIAM J'. WILSON AND PEARL WILSON,

I DIANA MILK-COOLING DEVICE Application led July 2, 1928. Serial No.289,897.

i ture thereof, it will be understood that the invention -is adapted forthe handling of liqnids of various inds, and for changing thetemperature thereof to a lower degree, or to a higher degree, as may bedesired.

In the business of caring for and handling fresh milk, it is essentialthat the temperature of same may be lowered to proper degree as soon aspossible.

Advantages to be desired are, that the cooling of the milk may be doneexpeditiously and in a sanitary manner and with the expenditure of aminimum amount of expense and labor.

In carrying out m invention I have embodied same in a mec anismespecially suited for use in connection with the milk container ofstandard size, which is constructed of sheet metal, and is about twelveinches in diameter, and about twenty-three inches in height. The stoutfunnel shaped mouth, reinforced lat its annular rim, is about nineinches in diameter, and the neck portion of the container is about sixinches in diameter. Containers of this type are extensively used bydairymen and by transportation and distributing forces, and it isdesirable that the milk to be transported in said container may beprepared by proper cooling, with a minimum expenditure 'of time andlabor, and f a minimum amount of handling.

Accordingly, the objects of my invention are to provide a cooling devicewhich is relatively light in weight, economical of manufacture, easytomanipulate and use, and which is easy Ato maintain in sanitarycondition.

The objects of my invention are accomplished by, and the invention isembodied in the new construction, combination and arrangement of partsillustrated in the accompanying drawings, and described in the followingspecifcation.

The several parts of the invention are identified by suitable charactersof .reference a plied thereto in the different view ill t e drawings inwhich" Figure 1 is a side view of my invention in operative position inconnection with a milk transport can of standard type; portions of thedevice being broken away, and ythe can being indicated by dotted lines.

Figure 2 is a top plan view of Figure 1, the cap 'plate of the fountainboxvhaving been removed, and a portion of the water wheel having beenbroken away.

Figure 3 is an enlarged vertical sectional view of the fountain box andcover structure, and the several operative parts of the invention. I

Figure 4 is a sectional top plan view taken on the line 4--4 in Figure3.

Broadly stated, the invention consists of a cover structure adapted tobe reposed above the mouth of the liquid container, a conduit devicesupported by said cover structure and capable of rotative movement andwhich extends through and above said cover structure,

a pipe coil communicating with, carried by,

and which is extended downwardly from said conduit device, and a watersupply pipe having flexible union with the pipe coil. Means above thecover structure to rotate the conduit device and to diffuse the waterthat passes OF RUSH COUNTY, IN-

therefrom, and a fountain box to receive the water so diiused and todischarge the said water within the area bounded by the walls of theliquid container, are also provided.

In the preferred form of embodiment of my invention, as illustrated inthe drawings, a

the jet from a common garden hose, constitutes the water supply for thepipe coil, and

its energy is utilized for and it constitutes the power for actuatingthe means for rotating the conduit device and for diffusing the waterthat passes therefrom.

Thecover structure consists of' a convex shell A made lof suitable sheetmetal, and which is provided with a central bore of suitable diameter. Ahousing B which is secured in position concentric with said bore 'has anextended circular flange C which may be relatively thin and which liesin sealed contact with the top surface ofthe shell A. A cross member Dwhosearcuatearim portions DL are secured to the marginal portions 0f.the Shell A, has a central bore, and,

a housing E. The function of the downwardly extended rim portion D1, asshown in Figure 3 will be presently referred to. Seat pieces three innumber, are secured at positions equidistant from each other, on theunderside of said cross member D, and are provided with 'offsets F1which are adapted to engage the rim of the li uid container. Byprovlding a plurality of t 1e offsets F1 in said seat ieces, thevariation in diameters of the mout rims 1 of the containers, iscompensated, the cover structure therefore being more generallyadaptable.l

The conduit device consists of a tubular column G whose lower end issecured in the central bore of a concave head member H the rim portionH1 of which is externally threaded. The said tubular column is supportedfor rotation, by ball bearings I and which are retained in the housingsE and B respectivel The function of the integrall forme lu s H providedon said head mem r H will e presently referred to.

A circulatory element or pipe coil of the preferred form, is that shownin the drawings, and it consists of a copper pipe, tinned,

and of s iral formation, `and the head member K. his head member has aninternally threaded rim adapted to be screwed to water tight en agementwith the rim of the head member In the center of this head memberK, is asmooth bore K2 of relatively small"- diameter shown. The entr portion Lof the said coil is secured in the bore of a suitable boss rovidedcentrally of the underside of said ead member K. The return portion L1of said coil has its end secured in a suitable boss and opens throughl ahole Ha in saidv he member. It will be understood that the pipe coil maybe constructed of form other than the spiral formation shown, or it mayconsist of a series of pipes or conduit sections suitably assembled andconnected together to constitute a circulatory means leading from andreturnin to the head member K 'and the conduit devlce above.

Surrounding the cover structure is a foun- .tain box having thecylindrical walls M, and

a cap plate N. The annular inclined wall M1 constituting the trough, hasits inturned edge M' to engage the offset D', and it is there secured inalignment with the marginal portion of the cover shell A. At the innerportion of the bottom and throughout the extent of the trough, arespaced perforations O through which the water content of the fountainbox is dischar ed for playing over the surfaces of, the iquid containerbelow. Whereas this fountain box in the present embodiment is ofcircular formation, its form in plan may be modified inA conformity withthe size, and plan formation and area of the container.

A fitting P is secured at an opening provided therefor at proper heightin the wall below that of the venin of the fountain box, and -it has ashank P1 of proper diameter and threaded to receive `slightly convex incross section, has its hubv bushing S secured by a pin R1 to the upper,

end of the tubular column G. The peripheral@ portion of 4this wheel isof pocketed formation, there being secured on the L y shaped rim, a ringshaped piece R2 which is provided with spaced radial vanes R1.v Theheight'between the top of ring piece R1, and the bottom R* of the wheelrim is such that the bottom R* of the wheel is on a plane nozzle P8. andthe top R2 is on a plane below that of the nozzle P2.

A water supply pipe Q has its free end disposed within, the interior ofthe tubular column G, and retained in loose but close fitting engagementwith the bore K2 of the pipe coil head member K, and in communicationwith the entry portion L of the pipe coil. The other end of the saidwater suppl)7 pipe is united with the nozzle P1, by a suitable unionJoint Q1.

The invention in readiness for use, a pears asshown in Figure 1, thepipe coil aving been cleansed and rendered sanitary, before unitingritto the head H of the conduit device. o unite the said parts, the head HisI held by the hand en aging the lugs H2; and with the other hand,screwing the head K of the coil pipe to the sealed and seated enagement, as s own in Figure 3.

n lowering the device to operative position the pipe coil will havebecome immersed in the milk vcontained 'in the can, the lcover structureand its connected parts being supported by the seat'pieces F on themouth rim of the container. Throu h the space interbetween the mout ofthe container, and t e cover structure, ample circulation of air abovethe container is assured.

Through a suitable hose or ipeconnection (not shown) applied to thesliank of the fitting P, water moving under the usual velocity of astandard water supply head, is passed through the nozzles P2 and P1.passing throu h the inlet pipe Q, and tne pipe coil and t e tubularcolumn G, as shown by the arrows in Figure 3, is deflected by the capplate N whence it flows upon the top surface of the'water wheel and isdischarged against the w'all of the fountain box and downwardly intotheetrough whence it flows freely through th perforations O.Coincidentally with the above operation, the force of the water fromnozzle P', in its contact with the vanes of the water wheel, causes theThe water latter and also the pipe coil, to be rotated. I

By the action and cooperation of the several sure. Although in thepresent parts as above described, the coil pi e throughout its entireextent," is caused to be maintained at low temperature, and there isalso caused a rapid and equable diffusion of the water which is passedupwardly and from the tubular column G. The water 'diffused in its owupon the surface of the water wheel, and the water which will haveactuated the wheel an'd have been em tied from its pockets, besideshaving been o eiiciency in maintaining cool, the ipe coil, and ofrotating it, is efficient in coding the walls of the liquid container.

By the use of this invention it is practicable to cool the fresh milk inthe container, as received from the prime source of supply, thetemperature of same at this stage being around ninety to ninety eightdegrees. With Water iowingthrough the nozzles l?2 and P3 at the usualwater supply temperature of about fifty-two degrees, the temperature ofthe milk will have been reduced, within about five minutes, to atemperature of about sixtyfive degrees; and within eight to ten minutes,to within Vabout two degrees of the temperature of the water.

The operation of the device is started and stopped, by the' turning onor oi (by a valve not shown in the hose or supply pi e) of the Watersupply. For taking care o the milk in a number of containers, a numberof the devices may be used; or a single device may be operated upon themilk of one 'container after another. .To detach the pipe coil, the headmember K is simply unscrewed from the head member H, after .which it maybe sterilized by scalding or by any other desired process. By thepeculiar construction and arrangement of the several Aoperative partsthere 1s no possibility of water entering the container. By having theriser C on the cover shell A, there is avoided \even the possibility ofany water enterin flow upon the shell (when the ountain box is beinghandled when not in actual use) and in proximity with the ball bearingJ. The device will operate with a rpinimum of friction, and practicallynoise essly, and with 4 'Water under usual. or relatively light presseciflcation, the invention is referred to as seing especially applicablefor cooling milk, it will be understood that the invention is also ofutility in instances where it is desirable to heat milk for the purposeof sterilizing or pasteurizing thereof. By the introduction of steam orhot water through the nozzle, the temperature of li uid contents of thereceptacle may be raiseii tosuch degree as may be desired, ad in arelatively short period of time.

In the construction of my invention, the several parts'may be made ofcast or sheet metal, and there may be various modications in structuralformA and detail, within which mightthe scope of the invention, asdefined by the appended claims, the spirit of the invention orsacrificing any of its advantages.

What I claim as my invention, and desire to secure by Letters Patent, is

1. A liquid cooling device, comprising a cover structure adapted'tobe'reposed above the mouth of a liquid container, a tubular conduitdevice supported by said cover structure and capable of rotativemovement, and which extends through and above said cover structure, apipe coil communicating with, carried by, and which is extendeddownwardly from said conduit device, anda water supply pipe of diameterless thanI the bore of the conduit device, and which enters into and hasa swivel union with the pipe coil.

2.\A liquid cooling device, comprising a cover structure adapted to bereposed above the mouth of a container, a tubular conduit devicesupported byand journaled vertically in the cover structure, elementcommunicating with, secured to and which is extended downwardly` fromsaid conduit device, a water supply pipe of diameter less than the boreof the conduit device and which has a swivel union with the entryportion of the circulatory element, a fountain box having its troughportion surrounding the lower portion of the cover structure, a waterwheel hubbed to the conwithout departing from a circulatory duit deviceat position above the cover strucv and through the latter, and the lowerjet ,y

being operable to actuate the Water wheel.

3. A liquid cooling device of the kind described, comprising a coverstructure adapted to be reposed above the mouth of a liquid container, apipe coilhaving a tubular neck supported by said cover structure forrotation and which projects above said cover structure, the said neckbeing provided with a chamber at its lower portion, the return portionof the coil entering said chamber,- a partition in the entry portion ofthe coil at a location below the said chamber and having a boretherethrough, an inlet pipe passed down the neck and through thepartition and being journaled in the latter, avfountain box having itstrough portion surrounding the cover structure and adapted todischargewithin the area bounded bythe walls of the container, a water Wheel inthe fountain box to rotate the pipe coil 'and to diffuse the wateriowing from the neck thereof, and a device adapted to receivewatersupply under pressure and having a jet to actuate the water wheel,and having a jet opening provided 4. A liquid cooling devlce, comprisinga i pipe "'55 latter.

cover structure, seat pieces on the cover structure to sustain the coverstructure at height spaced above the mouth of' a liquid container,

a tubular conduit supported by and journaled forv rotation inthe coveistructure and being projected above same, there being a flared open headon the bottom of the conduit, a circulatory element having its entryportion and return portion retained in proximate positions by aheadmember, the return portion o ening through said head member, and thereeing arelatively small bore opening fromthe said head member into theentry portion of the circulatory element, and' the said head member beinadapted for removable connection with t e fiared head of the conduit, aninlet pipe passed through the said conduit and being journaled in thebore of the head of the circulatory element, a .fountain box vhavingatrough portion surroundin the cover structure, a disk like water w eelslightly convex in cross section formation hubbed to the said conduitdevice,

^ and a device adapted to receive water supply 25 under pressure andhaving a jetto actuate the water wheel, and having a jet openingprovided with a nozzle for connection with the said inlet pipe.

5. A device for changing the` temperature 80 of liquids, comprising acover structure adapted to be reposed above the mouth of a liquidcontainer, a tubular conduit device the return portion oening throughsaid head member and there eing aA relativel small bore opening from thesaid head mem er into the entry portion of the circulate element and thesaid head member being a apted forv removable connection with the flaredhead of the conduit, and an inlet pipe passed throu h the said conduitand being journaled int e bore of the head of the circulator element.

8. A device of the kind describe comprising a cover structure adapted tobe reposed above the mouth of a container, a tubular conduit devicesupported by and journaled vertically in the cover structure, acirculatory element communicating with, secured to and extendeddownwardly from said conduit device, a Water supplyl pipe of diameterless than the bore of the conduit device and which has a swivel unionwith the entry portion of the circulator element, a water wheel hubbedto the conduit device at position above the cover structure, and adevice to divide-the head of water into an upper and a lower jet,

the upper jet being operable through the conduit and circulatory elementto pass in and through the latter, and the lower jet being operable toactuate the water wheel.

WILLIAM C. KEILSO.

supported by and journaled inthe cover structure, a circulatory elementcommuni- 35 eating with, carried by, and secured to said conduit device,and a supply pipe passed through the conduit deviceand having a swivelunion with the entry portion of the circulatory element.

6. In a device for changing the tempera- Ature of liquids, thecombination of a cover structure adapted to be reposed above the mouthof a liquid container, a ipe coil having-a tubular neck supported y saidcover 45 structure and capable of rotative movement, and whichextendsthrough and above .said cover structure, the said neck beingprovided with a chamber at its lower portion, the return portion of thecoil entering the said 50 chamber, a partition in the entry ortion ofthe coil at a location below the sai and having a bore therethrough, andan inlet i passed down the neck-and through the said partition and beingjournaled in the 7. In a device of the kind described the combinationofa cover structure ada ted to i be repose/d above the mouth of a 1i uidcontainer, ajtu'bular conduit supporte by and chamber journaled forrotation in the cover structure and bein a flared open head on thebottom of the con uit, a circulatory element having its entry portionand return portion retained in proximate positions by a head member,

being projected above the same, there f iso i

